TRAMEX MRH III Instruction Manual
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TRAMEX MRH III Instruction Manual

Moisture and humidity meter (digital)
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NOTES
© Checkline-Europe
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TABLE OF CONTENTS

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3.0
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5.0
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7.0
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9.0
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9.1
Roof Scale
9.2
9.3
9.4
9.5
9.6
9.7
9.8
10.0
11.0
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12.0
Species Correction Chart
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13.0
RH Probe
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13.1
Calibration checking of RH Probe
14.0
Calibration
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15.0
Limitations
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16.0
Product development
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17.0
Warranty
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Summary of Contents for TRAMEX MRH III

  • Page 1: Table Of Contents

    NOTES TABLE OF CONTENTS Introduction ……………………………………………………………. How it works …………………………………………………………… Instrument Features …………………………………………………. Operating Instructions ……………………………………………….. Non-destructive measurement mode ………………………………. Wood pin meter (Pin Probe) mode …………………………………. Typical MRH Displays ……………………………………………….. Humidity Measurement Mode ………………………………………. Working with your MRH ……………………………………………… Roof Scale Masonry Scale Drywall Scale...

  • Page 2: Introduction

    INTRODUCTION 17.0 WARRANTY Thank you for selecting a new MRH instrument. Checkline Europe (Checkline) warrants to the original purchaser that this product is of merchantable quality and confirms in kind and quality with the descriptions and The MRH has 3 modes of operation: specifications thereof.

  • Page 3: How It Works

    14.0 CALIBRATION HOW IT WORKS In non-destructive moisture measurement mode i.e. without the plug in probes, For regular on-site assessment of your MRH in moisture measurement mode, a calibration-check box is available from the suppliers of your MRH. Should it be the instrument operates on the principle that the electrical impedance of a material found that readings are outside the set tolerances, it is recommended that the MRH varies with its moisture content.

  • Page 4: Instrument Features

    INSTRUMENT FEATURES 13.1 Calibration checking of RH Probe Each RH probe is factory calibrated using precision equipment traceable to NIST Your MRH employs advanced digital technology to enable the incorporation of many standards. With reasonable care in use and storage, RH probe measurements features, which are listed below.

  • Page 5: Operating Instructions

    13.0 RH PROBE When the battery requires replacement a LOW BATTERY message is shown on the LCD. HOLD freezes reading to facilitate ease of recording readings. When the MRH is The RH Probe utilises “state of the art” electronic technology to provide an “easy to in HOLD mode, ‘H’...

  • Page 6: Non-Destructive Measurement Mode

    NON-DESTRUCTIVE MEASUREMENT MODE 1. Press the key to power up. With no RH probe or pin probe connected the last used scale will be displayed on the LCD. Press key again to power off. 2. To change scale, press key to select the wood scale or the comparative material scales.

  • Page 7: Wood Pin Meter (Pin Probe) Mode

    Both types are calibrated using gravimetric or oven-drying test methods. The Tramex MRH combines both of the above methods in one instrument so it is important to understand how each test method works as the results from the two tests may sometimes be different and appear to be contradictory.

  • Page 8: Typical Mrh Displays

    Meter reading (% moisture) 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Species Correct moisture content Obeche 10 10 1 12 13 14 15 15 16 16 17 18 18 19 20 Padauk, African 10 11 12 13 14 15 15 16 17 18 19 19 20 21 Peppermint, broad-leaved 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26...

  • Page 9: Humidity Measurement Mode

    Meter reading (% moisture) 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Species Correct moisture content Mahogany, miva 10 11 12 12 13 14 15 15 16 17 18 18 19 20 20 21 22 23 Mahogany, red 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 24 25 26 Mahogany, rose...

  • Page 10: Working With Your Mrh

    Meter reading (% moisture) 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Species Correct moisture content Gum, American, red 10 11 12 12 13 14 15 16 17 18 18 19 20 21 22 23 24 24 Gum, red, river 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Gum, rose...

  • Page 11: Masonry Scale

    Masonry Scale Testing plaster, brick and Block Your MRH gives comparative (relative) readings (0 to 99) on plaster, brick and block. These readings are displayed both numerically and in bar form on the LCD. The display also shows low (Lo), medium (Md) and high (Hi) readings for the scale. These do not necessarily indicate low, medium or high levels of moisture but indicate the area of the 0-100 comparative scale where the reading lies.

  • Page 12: Laminate Scale

    Laminate Scale For applications where the Roof or Drywall scales are too sensitive and the Masonry scale is not sensitive enough, the Laminate scale can be used. This scale used can be used for testing on ceramic tiles and other wall and floor coverings. It can also be used in many other applications where the other scales do not have the required sensitivity.

  • Page 13: Relative Humidity And Moisture Content

    Temperature Adjustment Chart Wood moisture content in excess of 18% - 20% may provide an environment for termite and woodboring insects to thrive and multiply. Wood at these high For use in pin-meter only. The instrument had been calibrated on wood at an levels can also support mold and biological growth.
  • Page 14 Wood Flooring Testing wood and wood products a) When testing wood, power-on, insert wood probe into phono-socket at the top of a) Excess moisture in wood flooring or concrete sub-floors can cause major the MRH and select Pin Probe Mode using the key.

  • Page 15: Wood Flooring

    11.0 WOOD PIN METER MODE Adhesives The presence of different species, treatments, adhesives, etc., within products such as plywood, particleboard, OSB (oriented strand board), laminated and Factors Affecting Moisture Readings engineered woods will affect measurements. If in doubt please contact us and, if The readings of all moisture meters are influenced by the characteristics of different you wish, we can work with you in developing your own calibration for a specific species of wood as well as temperature and other factors listed below.

  • Page 16: Table Of Wood Specific Gravities (S.g.)

    10.0 TABLE OF WOOD SPECIFIC GRAVITIES (S.G.) Hemlock, Western 0.45 Larch, Western 0.52 Pine, Lodgepole 0.41 Hardwoods Pine, Ponderosa 0.40 Pine, Sugar 0.36 (Am. = American) Pine, Western White (Idaho) 0.38 Spruce, Engelmann 0.35 Alder, Red (Am. Alder, Western Alder) Alnus rubra 0.41 Spruce, Sitka 0.40 Ash, White (Northern / Southern Ash) F.
  • Page 17 TRAMEX MRH III PORTABLE MOISTURE METER Checkline Europe BV Checkline Europe Tel: +31 (0)88 0029000 Dennenweg 225 B Fax: +31 (0)88 0029009 NL-7545 WE Enschede Internet: www.checkline.eu The Netherlands Email: info@checkline.eu OPERATING INSTRUCTIONS...

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